Sorry to dig up an old quote, but I have a somewhat related question. I'd like to use the Vibram cristy sole for my next pair of Rancourts. I've noticed that almost all examples of the cristy I've found online include a somewhat prominent midsole. My concern is that the cristy sole itself is already pushing the limits for how thick/high I'm comfortable with a shoe sole being. Is the typical leather midsole, used in combination with the cristy, necessary? And if so, am I best off just asking Taryn/Kyle to use a thin leather (rather than the thick leather midsoles that seem to be common)?